Bromocresol green
- Product Name
- Bromocresol green
- CAS No.
- 76-60-8
- Chemical Name
- Bromocresol green
- Synonyms
- Green;BROMCRESOL GREEN;BCG;BROMOCRESOL BLUE;BACILLUS OF CALMETTE AND GUERIN;γ-Sultone;vertdebromocresol;tetrabromo-m-cresolphthaleinsulfone;Phenol,4,4’-(3H-2,1-benzoxathiol-3-ylidene)bis(2,6-dibromo-3-methyl-,S,S-dioxide;reen
- CBNumber
- CB9447060
- Molecular Formula
- C21H14Br4O5S
- Formula Weight
- 698.01
- MOL File
- 76-60-8.mol
Bromocresol green Property
- Melting point:
- 225 °C (dec.) (lit.)
- Density
- 0.79 g/mL at 20 °C
- bulk density
- 350kg/m3
- Flash point:
- 12 °C
- storage temp.
- no restrictions.
- solubility
- Solubility Sparingly soluble in water; soluble in ethanol, ether, ethyl acetate
- form
- Powder/Solid
- pka
- 4.7(at 25℃)
- Boiling point:
- 626.0±55.0 °C(Predicted)
- color
- Pale orange
- PH Range
- 3.8(YELLOW)-5.4(BLUE)
- PH
- 3.8～5.4
- Water Solubility
- slightly soluble
- λmax
- 423nm, 444nm, 617nm
- Merck
- 14,1386
- BRN
- 372527
- Stability:
- Stable. Incompatible with strong oxidizing agents.
- Major Application
- Sol-gel matrix, fuel cells, sensors, display device, inks, paints, one-steptester for ammonia, cosmet-tester for ammonia, packaging system, textiles, cleansing products, detergents, cosmetics, diapers, identifying fresh and stale rice, monitoring fish spoilage, detecting carbohydrates, lacting acid bacteria, treating neoplasms, cancer, vaginal infection test method, drugs, dental materials
- Cosmetics Ingredients Functions
- COLORANT
- InChI
- 1S/C21H14Br4O5S/c1-9-12(7-14(22)19(26)17(9)24)21(13-8-15(23)20(27)18(25)10(13)2)11-5-3-4-6-16(11)31(28,29)30-21/h3-8,26-27H,1-2H3
- InChIKey
- FRPHFZCDPYBUAU-UHFFFAOYSA-N
- SMILES
- Cc1c(Br)c(O)c(Br)cc1C2(OS(=O)(=O)c3ccccc23)c4cc(Br)c(O)c(Br)c4C
- LogP
- 7.800 (est)
- CAS DataBase Reference
- 76-60-8(CAS DataBase Reference)
- EPA Substance Registry System
- Bromcresol green (76-60-8)
Safety
- Hazard Codes
- F,Xi,Xn
- Risk Statements
- 11-36-67-36/37/38-20/21/22
- Safety Statements
- 7-16-24/25-26-37/39-36
- RIDADR
- UN 1219 3/PG 2
- WGK Germany
- 3
- RTECS
- SJ7456000
- Autoignition Temperature
- 399 °C
- TSCA
- TSCA listed
- HazardClass
- 3
- PackingGroup
- II
- HS Code
- 29349990
- Storage Class
- 11 - Combustible Solids
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Danger
- Hazard statements
-
H225Highly Flammable liquid and vapour
H319Causes serious eye irritation
H340May cause genetic defects
H360May damage fertility or the unborn child
H372Causes damage to organs through prolonged or repeated exposure
H373May cause damage to organs through prolonged or repeated exposure
- Precautionary statements
-
P201Obtain special instructions before use.
P202Do not handle until all safety precautions have been read and understood.
P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P233Keep container tightly closed.
P240Ground/bond container and receiving equipment.
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P308+P313IF exposed or concerned: Get medical advice/attention.
P403+P233Store in a well-ventilated place. Keep container tightly closed.
P405Store locked up.
P501Dispose of contents/container to..…
N-Bromosuccinimide Price
- Product number
- 17470
- Product name
- Bromocresol Green Sultone Form
- Purity
- for microscopy (Bot., Hist., Vit.), indicator (pH 3.8-5.4)
- Packaging
- 5G
- Price
- $64.1
- Updated
- 2025/07/31
- Product number
- 17470
- Product name
- Bromocresol Green Sultone Form
- Purity
- for microscopy (Bot., Hist., Vit.), indicator (pH 3.8-5.4)
- Packaging
- 25g
- Price
- $243
- Updated
- 2025/07/31
- Product number
- 114359
- Product name
- Bromocresol Green
- Purity
- ACS reagent, Dye content 95%
- Packaging
- 5g
- Price
- $57.3
- Updated
- 2025/07/31
- Product number
- 114359
- Product name
- Bromocresol Green
- Purity
- ACS reagent, Dye content 95%
- Packaging
- 25g
- Price
- $219
- Updated
- 2025/07/31
- Product number
- 1.08121
- Product name
- Bromocresol green
- Purity
- indicator ACS,Reag. Ph Eur
- Packaging
- 1g
- Price
- $220
- Updated
- 2025/07/31
Bromocresol green Chemical Properties,Usage,Production
Chemical Properties
tan to yellow crystals
Uses
Bromocresol Green is a pH sensitive indicator used in the growth medium for microorganisms and titrations. It is useful in various colorimetric detection studies and as an actively tracking dye for DNA agarose gel electrophoresis. It acts as an inhibitor of prostaglandin E2 transport protein. It is also used in TLC for visualizing compounds containing functional groups having pKa less than 5.
Uses
Bromocresol Green (BCG) is a pH sensitive triphenylmethane dye useful in a variety of colorimetric detection technologies. BCG is used as a tracking dye for DNA agarose gel electrophoresis, in protein determinations and in charge-transfer complexation processes. In TLC BCG is used for visualisation of the compounds with functional groups whose pKa is below 5.0.
Uses
As indicator, pH 3.8 yellow; pH 5.4 blue-green.
Definition
ChEBI: Bromocresolgreen is a member of benzofurans.
Hazard
Moderately toxic.
Synthesis
A method of preparing bromocresol green in the following steps:
(1) 1.5 kg of bromine is dissolved in 1.25 liters of glacial acetic acid solution to obtain a bromine-glacial acetic acid mixture;
(2) 2 kg of pure m-cresol violet is dissolved in a solution of 2.5 liters of glacial acetic acid;
(3) The bromine-ice acetic acid mixture obtained in step (1) is slowly dripped into the solution in step (2) at a temperature not exceeding 80 C. After addition, stirring is continued and kept at 80 to 90 C. for 24 hours, and then filtered after cooling down, and the precipitate is washed twice with ice acetic acid, dried or pumped, and dried at 50 to 60 C. to obtain the crude bromocresol green. Moreover, the crude bromocresol green was recrystallized with benzene or glacial acetic acid to obtain pure bromocresol green, which crystallized into white, melting point 218-9C.
Purification Methods
Crystallise the dye from glacial acetic acid or dissolve it in aqueous 5% NaHCO3 solution and precipitate it from the hot solution by dropwise addition of aqueous HCl. Repeat this until the UV/VIS-extinction did not increase 423nm. It is an indicator: at pH 3.81 at max (yellow) and pH 5.4 (blue-green). [Beilstein 19/3 V 460.]
Bromocresol green Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from Bromocresol green manufacturers
- Product
- Bromocresol green 76-60-8
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 10 mt
- Release date
- 2025-03-07
- Product
- Bromocresol green 76-60-8
- Price
- US $6.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 2000KG/Month
- Release date
- 2024-08-05
- Product
- Bromocresol green 76-60-8
- Price
- US $999.00-666.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- 5000
- Release date
- 2024-08-20